Spectacle lens stress detection device

Abstract

The utility model provides a spectacle lens stress detection device which comprises a detection lampshade base, a light-transmitting detection plate and a transverse moving beam, a protruding connecting strip is arranged at the bottom of one side of the transverse moving beam, one end of the protruding connecting strip is connected with a rotating handle through a bearing, and one end of the rotating handle penetrates through the protruding connecting strip and is connected with a negative pressure adsorption cylinder. A spectacle lens adsorption seat is arranged at the bottom end of the negative pressure adsorption cylinder; according to the utility model, the light-transmitting detection plate is arranged at the opening at the top end of the detection lampshade base and covers the three groups of LED lamp strips, and is connected with a power supply through an external power line to supply power to the three groups of LED lamp strips, so that the three groups of LED lamp strips emit light with different intensities, and the spectacle lens adsorption base corresponds to the LED lamp strips with different brightness through the movement of the transverse moving beam, so that the detection efficiency is improved. And meanwhile, by rotating a rotating handle, a negative pressure adsorption barrel is conveniently communicated with a spectacle lens adsorption seat to rotate, the detection range of the spectacle lenses is adjusted, and the spectacle lenses are detected more comprehensively.

Description

Technical Field

[0001] The utility model belongs to the technical field of spectacle lens detection and relates to a spectacle lens stress detection device. Background Art

[0002] The refraction of light by lenses must be isotropic, and the propagation of light must conform to the law of refraction. If it is subjected to external force or uneven heating, internal stress will be generated, thereby losing the isotropic property and cannot enter the market as lenses.

[0003] Patent No. CN201420794339.9 discloses a spectacle lens stress detection device, including a detection light box and a detection board. The detection light box is provided with a light source, and its upper surface includes a light-transmitting diffusion plate, a first polarizing film and a first transparent acrylic plate from bottom to top, and its side and bottom surfaces are not light-transmitting; the detection board is arranged above the detection light box, and includes a second transparent acrylic plate, a second polarizing film and a third transparent acrylic plate from bottom to top; the spectacle lens to be detected is placed on the first transparent acrylic plate. The technical solution is simple, practical, easy to use, and can screen and identify the internal stress of the spectacle lens in an intuitive and visual way, improve production efficiency, and ensure product quality.

[0004] The above-disclosed stress detection device has the disadvantages that when detecting the eyeglass lens, the detection range is single and only a light source with a single brightness is used for irradiation detection. Therefore, we design a eyeglass lens stress detection device. Summary of the invention

[0005] The purpose of the utility model is to provide a spectacle lens stress detection device to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a spectacle lens stress detection device, comprising a detection lampshade seat, a light transmission detection plate and a transverse moving beam, three groups of LED light strips are installed at the opening at the top of the detection lampshade seat through a bracket, the light transmission detection plate is arranged at the opening at the top of the detection lampshade seat and covers the three groups of LED light strips, movable connecting grooves are provided on both sides of the top of the detection lampshade seat, sliding connecting seats are provided at the bottom of both ends of the transverse moving beam, two sliding connecting seats are respectively slidably connected to two movable connecting grooves, a protruding connecting strip is provided at the bottom of one side of the transverse moving beam, one end of the protruding connecting strip is connected to a rotating handle through a bearing, one end of the rotating handle passes through the protruding connecting strip and is connected to a negative pressure adsorption cylinder, and a spectacle lens adsorption seat is provided at the bottom of the negative pressure adsorption cylinder;

[0007] A magnifying glass frame is arranged at the end of the protruding connecting strip, and a magnifying glass lens is installed at the lens groove of the magnifying glass frame.

[0008] In the above-mentioned eyeglass lens stress detection device, the light transmission detection plate is composed of a light diffusion plate, an auxiliary polarizing film and a transparent acrylic plate, and the auxiliary polarizing film is arranged between the light diffusion plate and the transparent acrylic plate. The purpose of such arrangement is to have a good light transmission effect, to facilitate the light source generated by the three groups of LED light strips to transmit light to the tested lens, and to reduce the loss of the light source.

[0009] In the above-mentioned eyeglass lens stress detection device, a telescopic connecting rod is provided at the bottom of the magnifying lens frame, a diffuser light-transmitting plate corresponding to the magnifying lens is installed at one end of the telescopic connecting rod, and a polarizing film is provided at the bottom end of the diffuser light-transmitting plate. The purpose of such a setting is to have a good auxiliary detection effect and facilitate better differentiated display of the optical performance of the tested lens.

[0010] In the above-mentioned eyeglass lens stress detection device, an external power line is provided at one side of the bottom end of the detection lampshade seat, and the external power line is electrically connected to the three sets of LED light strips. The purpose of such a setting is to facilitate connecting the power supply through the external power line to supply power to the three sets of LED light strips, so that the three sets of LED light strips emit light of different intensities.

[0011] In the above-mentioned eyeglass lens stress detection device, a piston rod is provided on one side of the negative pressure adsorption cylinder, and the maximum distance that the piston rod is pulled is half of the height of the negative pressure adsorption cylinder, and after the piston rod is pulled to the maximum distance, the eyeglass lens adsorption seat generates negative pressure. The purpose of this arrangement is to generate negative pressure on the eyeglass lens adsorption seat connected to the negative pressure adsorption cylinder by pulling the piston rod, so that the eyeglass lens can be adsorbed and clamped, so that the tested lens is located above the light transmission detection plate for detection.

[0012] In the above-mentioned eyeglass lens stress detection device, the two sliding connection seats slide synchronously in the corresponding moving connection grooves, and the sliding connection seats do not fall off inside the corresponding moving connection grooves. The purpose of this arrangement is to enable the transverse moving beam to move smoothly, avoid the transverse moving beam tilting due to different moving speeds at both ends of the transverse moving beam, and cause the detection accuracy to decrease.

[0013] Compared with the prior art, the advantages of the eyeglass lens stress detection device of the utility model are as follows: a light-transmitting detection plate is set at the opening at the top of the detection lampshade seat and covers the three groups of LED light strips, the power supply is connected through an external power cord, and the three groups of LED light strips are powered, so that the three groups of LED light strips emit light of different intensities, and the movement of the lateral moving beam is used to make the eyeglass lens adsorption seat correspond to the LED light strips of different brightness, so as to facilitate detection according to different brightness, and at the same time, by turning the rotating handle, the negative pressure adsorption cylinder is connected to the eyeglass lens adsorption seat to rotate, the detection range of the eyeglass lens is adjusted, and the eyeglass lens is detected more comprehensively; by setting a magnifying glass frame and a magnifying lens, it is convenient to magnify the detection part, so that the tester can clearly observe the differences in the optical properties of the tested lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of a device for detecting stress of eyeglass lenses.

[0015] Figure 2 The utility model is a structural schematic diagram of a protruding connecting strip of a spectacle lens stress detection device.

[0016] Figure 3 The utility model is a schematic diagram of the composition structure of a light transmission detection plate of a spectacle lens stress detection device.

[0017] In the figure, 1. detection lampshade seat; 2. light transmission detection plate; 3. movable connection groove; 4. sliding connection seat; 5. transverse moving beam; 6. protruding connection strip; 7. rotating handle; 8. negative pressure adsorption cylinder; 9. external power cord; 10. magnifying glass frame; 11. magnifying lens; 12. telescopic connecting rod; 13. diffuser light transmission plate; 14. polarizing film; 15. piston pull rod; 16. eyeglass lens adsorption seat; 17. LED light strip; 18. light diffusion plate; 19. auxiliary polarizing film; 20. transparent acrylic plate. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a device for detecting stress of eyeglass lenses;

[0020] Embodiment 1: The stress detection device includes a detection lampshade seat 1, a light-transmitting detection plate 2 and a transverse moving beam 5. Three groups of LED light strips 17 are installed at the opening at the top of the detection lampshade seat 1 through a bracket. The light-transmitting detection plate 2 is arranged at the opening at the top of the detection lampshade seat 1 and covers the three groups of LED light strips 17. Movable connecting grooves 3 are provided on both sides of the top of the detection lampshade seat 1. Sliding connecting seats 4 are provided at the bottom of both ends of the transverse moving beam 5. The two sliding connecting seats 4 are respectively slidably connected to the two moving connecting grooves 3. A protruding connecting strip 6 is provided at the bottom of one side of the transverse moving beam 5. One end of the protruding connecting strip 6 is connected to a rotating handle 7 through a bearing. One end of the rotating handle 7 passes through the protruding connecting strip 6 and is connected to a negative pressure adsorption cylinder 8. The bottom end of the negative pressure adsorption cylinder 8 is provided with an eyeglass lens adsorption seat 16.

[0021] The above design can effectively clamp the spectacle lenses, and at the same time facilitate the adjustment of the position of the spectacle lenses and the adjustment of the detection range of the spectacle lenses.

[0022] Embodiment 2: In order to facilitate the tester to observe the optical performance difference of the tested lens more clearly and intuitively, and to facilitate the differentiated display of the optical performance of the tested lens, a magnifying glass frame 10 is provided at the end of the protruding connecting strip 6, and a magnifying lens 11 is installed at the lens groove of the magnifying glass frame 10. A telescopic connecting rod 12 is provided at the bottom of the magnifying glass frame 10, and a diffuser light-transmitting plate 13 corresponding to the magnifying lens 11 is installed at one end of the telescopic connecting rod 12, and a polarizing film 14 is provided at the bottom of the diffuser light-transmitting plate 13.

[0023] In this embodiment, in order to transmit the light generated by the three groups of LED light strips 17 to illuminate the lens under test and reduce the loss of the light source, the light transmission detection plate 2 is composed of a light diffusion plate 18, an auxiliary polarizing film 19 and a transparent acrylic plate 20, and the auxiliary polarizing film 19 is arranged between the light diffusion plate 18 and the transparent acrylic plate.

[0024] In this embodiment, in order to enable the three groups of LED light strips 17 to emit light of different brightness, an external power cord 9 is provided on one side of the bottom end of the detection lampshade holder 1 , and the external power cord 9 is electrically connected to the three groups of LED light strips 17 .

[0025] In this embodiment, in order to generate negative pressure in the lens adsorption seat 16 and achieve the clamping effect on the lens, a piston pull rod 15 is provided on one side of the negative pressure adsorption cylinder 8. The maximum pulling distance of the piston pull rod 15 is half of the height of the negative pressure adsorption cylinder 8 and the lens adsorption seat 16 generates negative pressure after the piston pull rod 15 is pulled to the maximum distance.

[0026] In this embodiment, in order to avoid the different moving speeds at the two ends of the transverse moving beam 5 causing the transverse moving beam 5 to tilt and causing the detection accuracy to decrease, the two sliding connecting seats 4 slide synchronously in the corresponding moving connecting grooves 3, and the sliding connecting seats 4 do not fall off inside the corresponding moving connecting grooves 3.

[0027] Working principle: Place the eyeglass lens to be tested on the eyeglass lens adsorption seat 16, pull the piston pull rod 15 to the maximum distance (the piston pull rod 15 can be automatically limited after being pulled), so that the eyeglass lens adsorption seat 16 generates negative pressure to adsorb the eyeglass lens, connect the power supply through the external power cord 9, power the three groups of LED light strips 17, so that the three groups of LED light strips 17 emit light of different intensities, move the horizontal moving beam 5 to the area of ​​the LED light strip 17 with the lowest brightness, and rotate the rotating handle 7 to rotate the eyeglass lens, so as to facilitate comprehensive testing of the eyeglass lens. The design of the magnifying glass frame 10 and the magnifying lens 11 facilitates the magnification of the tested area, so that the tester can clearly observe the differences in the optical properties of the tested lenses.

[0028] After detecting the LED light strip 17 interval with the lowest brightness, move the horizontal moving beam 5 again to the LED light strip 17 interval with the middle brightness, and perform the previous detection in the same way. Finally, move the horizontal moving beam 5 to the LED light strip 17 interval with the highest brightness, and perform the previous detection in the same way. This technical solution can comprehensively perform stress detection on eyeglass lenses, and can also realize diversified detection according to different brightness, thereby improving the detection quality.

[0029] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A spectacle lens stress detection device, comprising a detection lampshade seat (1), a light transmission detection plate (2) and a transverse moving beam (5), characterized in that: Three groups of LED light strips (17) are installed at the opening at the top of the detection lampshade seat (1) through a bracket, the light-transmitting detection plate (2) is arranged at the opening at the top of the detection lampshade seat (1) and covers the three groups of LED light strips (17), movable connection grooves (3) are provided on both sides of the top of the detection lampshade seat (1), sliding connection seats (4) are provided at the bottom of both ends of the transverse moving beam (5), and the two sliding connection seats (4) are respectively slidably connected to the two movable connection grooves (3), and a protruding connection strip (6) is provided at the bottom of one side of the transverse moving beam (5), one end of the protruding connection strip (6) is connected to a rotating handle (7) through a bearing, one end of the rotating handle (7) passes through the protruding connection strip (6) and is connected to a negative pressure adsorption cylinder (8), and a lens adsorption seat (16) is provided at the bottom of the negative pressure adsorption cylinder (8); A magnifying glass frame (10) is provided at the end of the protruding connecting strip (6), and a magnifying glass lens (11) is installed at the lens groove of the magnifying glass frame (10).

2. The eyeglass lens stress detection device according to claim 1, characterized in that: The light transmission detection plate (2) is composed of a light diffusion plate (18), an auxiliary polarizing film (19) and a transparent acrylic plate (20), wherein the auxiliary polarizing film (19) is arranged between the light diffusion plate (18) and the transparent acrylic plate.

3. The eyeglass lens stress detection device according to claim 1, characterized in that: A telescopic connecting rod (12) is arranged at the bottom of the magnifying glass frame (10); a diffuser light-transmitting plate (13) corresponding to the magnifying lens (11) is installed at one end of the telescopic connecting rod (12); and a polarizing film (14) is arranged at the bottom end of the diffuser light-transmitting plate (13).

4. The eyeglass lens stress detection device according to claim 1, characterized in that: An external power line (9) is provided on one side of the bottom end of the detection lampshade seat (1), and the external power line (9) is electrically connected to three groups of LED light strips (17).

5. The eyeglass lens stress detection device according to claim 1, characterized in that: A piston pull rod (15) is provided on one side of the negative pressure adsorption cylinder (8); the maximum distance that the piston pull rod (15) can be pulled is half the height of the negative pressure adsorption cylinder (8); and when the piston pull rod (15) is pulled to the maximum distance, negative pressure is generated in the eyeglass lens adsorption seat (16).

6. The eyeglass lens stress detection device according to claim 1, characterized in that: The two sliding connection seats (4) slide synchronously in the corresponding movable connection grooves (3), and the sliding connection seats (4) do not fall off inside the corresponding movable connection grooves (3).

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